Convertible form, fill and seal packaging machine

Package making – Progressively seamed cover web or web folds – With closing of web between package units

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Details

53552, 531334, 531392, B65B 920

Patent

active

060294280

ABSTRACT:
A convertible, vertical form, fill and seal packaging machine and method for making a variety of types and styles of bags and seals is disclosed. The machine produces durable, substantially air-tight bags at high speed and provides for the production of different size and make of bags and different amounts and types of product in the bags. The machine includes a film drive and pinch roll pair, a pair of film pull belts, and a pair of zipper driver rollers for pulling plastic film and zipper strip through the machine. The machine is convertible from one for producing reclosable edge fin seal bags to another for producing nonreclosable midline seal pillow type bags. The pinch seal assembly can be pulled out of the machine, indexed 90.degree., and pushed back into the machine. The film pull belts are part of a self-contained pull belt unit which can be adjusted or removed from the machine, inverted and placed back into the machine. The machine may include a bag squeezer unit having opposing squeeze plates or pads for removing excess air and/or compacting the product to form a reduced size, reclosable bag.

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